Jae-Hoon Choi - Thanks. Found some docs via googling too, but they're fairly random versions and some OEM stuff (eg HP, IBM). No idea what the actual most current (at EoL) docs look like.
Also asking to see if this can be addressed "properly" (ie full list of docs/downloads on the website somewhere) so future enthusiasts and home/hobby users starting with legacy stuff have an easier time of it.